The Decolonial Imaginary: Writing Chicanas Into History by Emma Perez She poses a theory which rejects the colonizer's methodological assumptions and.

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They are called the Tadpoles, composed of denser gas and dust, where evident star formation and birth is still continuing. The Ea stern Veil. The eastern part of the Veil Nebula complex portraited here, consists of the three catalogue objects NGC , NGC and IC from left to right, forming together this characteristic loop. Perseid Meteor Shower on 11 August. The years before we hadn't much luck with the Perseids - it was clouded out most of the time, or only a few meteors appeared. But not this year!

Almost clear sky and lots of bright shooting stars were seen above. This image is composed of eight pictures - each exposed one minute with a wide-angle lens and a DSLR on an equatorial mount - that were merged in post processing. The Iris Nebula.

Deep-Sky Wonders: A Tour of the Universe with Sky and Telescope's Sue French

Some people might see a human eye's blue iris, some have the impression of petals this luminous reflection nebula in constellation Cepheus can evoke. In fact, it is a young, blue star illuminating surrounding dust clouds. In some inner parts of the nebula ultraviolet light is converted into a weak reddish glow, whereas in the outer region, also dust and cold molecular clouds weaken the light of background stars more or less.

The Western Veil. Thousands of years ago a supernova exploded, leaving behind what is now known as the "Veil Nebula", a faint and delicate structure devided into serveral more or less prominent sections with half a dozen catalogue numbers. This image shows the most western part NGC or the "Witches Broom Nebula" alongside with the adjacent slightly fainter nebulosity seen at the top. All these nebulas are fine examples of differentiation in the composition of the light emitting components, hydrogen and sulphur representing mainly the red colours, oxygen mainly the green and blue.

The center part of NGC is nearly outshined by 4,3 mag 52 Cygni, a foreground star which has physically nothing to do with the nebula itself. This image shows only the central part with the famous "Elephant-trunk" just below the center. Inside this remarkable structure, also labeled as IC A, very active star formation is under way, hosting several very young stars and protostars, as infrared data from the Spitzer space telescope had unveiled.

When looking at the beautiful Sunflower Galaxy M 63, you will notice a dust lane covering the highly structured spiral arms at the south edge. This lane, and also an extremely faint halo of stars around M63, are remains of a dwarf galaxy disrupted by the Sunflower Galaxy.

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In turn, this dwarf galaxy is not completely "eaten alive" yet, but is still visible as a faint plume south west of M The Pleiades, Seven Sisters or Messier 45 were well known in all cultures all over the world since the dawn of civilization and played a major role in determing yearly cycles. Therefore it is the first deep-sky object ever imaged by mankind. This image can be found on the Nebra sky-disc, which was manufactured around BC. Since then imaging techniques had slightly improved, revealing wide spread gas filaments around the star cluster, shining in a blue light, reflecting the intense radiation of the hot young cluster members.

Another image photographed with the Kodak Elite-Chrome film is online now. Have a look at the beautiful Galaxy M 33 in Constellation Triangulum and enjoy. The Triangulum Galaxy is the third-largest member of the Local Group of galaxies, which includes the Milky Way Galaxy, the Andromeda Galaxy and about 30 other smaller galaxies. The so called Soul Nebula is one of several wide emission complexes in the constellation Cassiopeia.

It is illuminated bei several smaller star clusters in the center area. Here the interstellar gas is relatively thin and faintly structured. It seems, that stellar winds are blowing the gas apart and to the "rims", where lots of pillarlike struktures and dark dust clouds are present, with IC as one of the most noticable ones on the upper left.

Deep-Sky Wonders.

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There are four reflection nebulas in this small area in constellation Monoceros the Unicorn. The two large ones, IC and , were discovered accidently twice - by astronomer E.

Deep-Sky Wonders

About this book Customer reviews Biography Related titles. Images Additional images. About this book Sue French's elegant, informative monthly columns in Sky and Telescope magazine have won this astronomy writer a passionate following among astronomy enthusiasts. Customer Reviews Review this book. Media reviews. Current promotions.

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Insects: Their Natural History and Diversity. Sue French's Deep-Sky Wonders is one such volume The quality of the deep-sky images is outstanding -- a tribute to the various photographers as well as the book's printer. But it's the written word that will make or break a book like this, and Sue's writing is superb. If you're looking for a gift for someone who is an occasional stargazer, a serious observer, or anyone in between, you won't go wrong with Deep-Sky Wonders.

This is a great introduction to deep-sky stargazing for novice and experienced amateur astronomers alike. Like a science-minded Martha Stewart, she spices up the conversation with tidbits of history who discovered what and when to keep readers motivated. Most important, she has a museum curator's eye for detail', helping readers to fully appreciate those tiny flecks of light once they find them. The detailed but very readable content is organized by seasons and then by month Obscure but interesting astronomical tidbits Star maps, a list of additional resources, and an index round out this outstanding book, which is of use to students, both those new to astronomy as well as experienced observers.

Although the book can be used as a reference for beginners, its primary audience is likely to be midlevel and advanced observers. Recommended for all readers who want to take a look at the night sky. Reviews Schrijf een review. Bindwijze: Hardcover. Verkoop door bol. In winkelwagen Op verlanglijstje. Andere verkopers 2.